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  1. #1
    Chris Clement's Avatar
    Chris Clement is offline Junior Member

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    hi - new here

    Trying to repair vr2000d for friend. Replaced all IRF3205, 2 IRF9640 and 1 (IR)FB31N20D. Power supply now charges up to about + and - 40 volts but it rapidly (about 20 hz) draws hard and goes into protect mode, stops drawing and comes out. I think all the FETS are good now. Anyone have any suggestions?
    Last edited by Chris Clement; 11-02-2012 at 11:15 AM. Reason: add details

  2. #2
    subzero's Avatar
    subzero is offline Veteran

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    Re: hi - new here

    take it to a certified repair center?...

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